"And I will harden Pharaoh's
heart, and multiply My signs and My wonders in the land of Egypt... that I may lay My hand upon Egypt... and the Egyptians
shall knowthat I am YHVH, when I stretch forth My hand upon Egypt."
(Ex 7:3-5)
The true purpose of the Plagues was not only to put increasing pressure on Pharaoh to release the Israelites, but to establish
in Egypt that YHVH is the Almighty and above all men and idols.
"So that you should know that I am YHVH in the midst of the earth."